Tennis great Andre Agassi and the rest of the world remembered Robin Williams who passed away on Monday. The famed comedian and actor had a long connection with the game and the players.

In an interview with TMZ Sports, along with wife Steffi Graff, Agassi summed up their feelings for Robin Williams.

"Stefanie and I are saddened at the loss of our friend. He was one of the kindest, most generous people we have ever known."

Agassi's charity auctions often included items from Williams, even when he couldn't attend the events.

In 2009, Tennis.com asked Williams about a "Night at the Net" charity event where he faced a serve from Pete Sampras,

"...when he brought it, it was like a particle. You realize, “OK, I’m ready!” and all of a sudden it was gone."

Robin Williams had observations on some other players such as Roger Federer who he called, "The Terminator" and when asked if he liked Maria Sharpova, Williams said,

"Wonderful to watch. It’s weird when you watch women’s tennis now with all the grunting and shouting. It’s a bit like phone sex. So you have to be very careful not to get too excited."

Williams took up tennis from his mother Laurie who was a devout player in the San Francisco area. When asked what he liked about the sport, Williams noted, "The mental game combined with the physical – I love both."

some hysterical moments with Robin Williams

A lot of people in Hollywood play golf, yet you like tennis. Why?

Tennis is just much more physical. It’s chess at 90 miles per hour. The idea of playing, pushing, moving, and the constant strategy involved. In golf, if someone hit the ball back at you, now that would be interesting.

"like stand-up, you have to be ready to move in all different ways. And there’s that kind of solo thing—it’s all you."Robert Mora/Getty Images

"like stand-up, you have to be ready to move in all different ways. And there’s that kind of solo thing—it’s all you."

One example was when he said,”it’s weird when you watch women’s tennis with all the grunting and shouting. It’s a bit like phone sex. So you have to be very careful and not get too excited.”

"Stefanie and I are saddened at the loss of our friend. He was one of the kindest, most generous people we have ever known." Vincent Laforet/Getty Images

"Stefanie and I are saddened at the loss of our friend. He was one of the kindest, most generous people we have ever known."

Andre Agassi shared some hysterical moments with Robin Williams over the the years -- and tonight he and Steffi Graf are thanking him for his big-hearted efforts to support their charity.

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Mike Milazzo has been observing and playing tennis for over thirty years. During that time Mike has seen the equipment, players and game itself evolve to the sport it is today. Mike is active in several USTA leagues and is a frequent visitor to tennis tournaments. Contact Mike with your comments and questions.